5156656505660 has 48 divisors (see below), whose sum is σ = 11813725808640. Its totient is φ = 1875101067840.

The previous prime is 5156656505633. The next prime is 5156656505669. The reversal of 5156656505660 is 665056566515.

It is a super-2 number, since 2×5156656505660² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5156656505596 and 5156656505605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5156656505669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9259637 + ... + 9800723.

It is an arithmetic number, because the mean of its divisors is an integer number (246119287680).

Almost surely, 2^{5156656505660} is an apocalyptic number.

It is an amenable number.

5156656505660 is an abundant number, since it is smaller than the sum of its proper divisors (6657069302980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5156656505660 is a wasteful number, since it uses less digits than its factorization.

5156656505660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584426 (or 584424 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 56.

The spelling of 5156656505660 in words is "five trillion, one hundred fifty-six billion, six hundred fifty-six million, five hundred five thousand, six hundred sixty".